Re: Using commercial radios on GMRS
- I'm not looking for field programmability of radio frequencies. That
can be done by the manufacturer at the time of manufacture, or by a
dealer at the time of the sale.
Once the frequencies have been programmed into the radio by
whomever/however, what I want is front panel keypad, and/or
microphone keypad programmability of CTCSS, DCS, and DTMF encode and
decode, with the ability to set independant CTCSS encode and decode,
and preferably to be able to use two or more (CTCSS and/or DCS and/or
DTMF) simultaneously; the ability to switch through transmitter power
output levels (5-10-20-40 watts on the 8 main channels, and 2 watts
only on the 7 interstitals in a mobile; 0.5-2-4 watts on the 8 main
channels, and 0.5-2 watts on the 7 interstitals in a handheld); one-
button CSQ monitoring (typically standard at least on mobiles); one-
button monitoring of the 467 MHz repeater input frequency; and one-
button repeater/talkaround function (typically standard capability).
There should also be various channel/tone/code scan functions, of
Naturally, an LCD screen would be of great help in setting the
I'd like the same features in MURS handheld and mobile radios, sans
repeater capability, and within the technical limits of the service,
I'm just dreaming out loud, here. And I'm not willing to risk my Ham
license, any other future radio service license, my privilege to use
license-by-rule radios, or my general reputation, by modding a Ham
radio which could satisfy my wishlist.
John H. Guetherman
- Sometime you have to think through the reasoning for the reg.
It sounds like the FCC ( the Federal Confusion Commission -- we really do
need to have a contest for a new three word acronym!) intended that the user
not be able to retune the radio -- keeping it on the assigned/licensed
frequency. 'Crystal' as opposed to a variable oscillator.
The FCC has never been too good at writing 'how to' regs. Technology always
seams to 'defeat' their intent. It's better they stick to writing regs that
define the desired result (i.e.; "User must not be able to easily change the
transmit frequency") as opposed to ones that try to define the technology to
be used in achieving the results. relatively inexpensive frequency agile
radios were a 'defeat' of a lot of control that the FCC imposed years ago.
Additionally, they now have literally reams of regs ( some probably
technically obsolete) that would take decades to rewrite, review, and put
----- Original Message -----
From: "Alan Dixon" <n3hoe@...>
Sent: Saturday, November 02, 2002 9:27 AM
Subject: RE: [GMRS] Re: Using commercial radios on GMRS
> Well, I can see that you're right about one point in particular, Rod.
> That's the way so many of the FCC regulations are written... Clear as
> Yes, the crystal reference oscillator in the PLL/DLL satisfies the legal
> requirement here. Notice that §95.651 states that these "transmitters"
> (not user channel/frequency selection) "must be crystal controlled".
> Alan Dixon
> N3HOE / WPUC720
> POPULAR COMMUNICATIONS
> --------- Original Messages ----------
> From: "rodneyvorndam" <vorndamr@...>
> To: GMRS@yahoogroups.com
> Date: Sat, 02 Nov 2002 04:38:48 -0000
> Subject: [GMRS] Re: Using commercial radios on GMRS
> --- In GMRS@y..., Marcel <Marcelrf@B...> wrote:
> > We knew that just wanted to hear rodneyvorndam"
> > <vorndamr@u...> reply.
> > > Maire Company wrote: <snip>
> Ok, lets see if I can get my foot out of my mouth here.....I interpet
> that reg as meaning that each frequency is controlled by a seperate
> crystal ... I never really thought about crystal controlled meaning
> anything else. Being very new to this hobby, I'm glad I've got you
> guys to keep me on the straight and narrow. Rod
> [Non-text portions of this message have been removed]
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